Improvement in sash-fasteners



B. BUSH. Sash-Fastener.

No. 198,345. Patented Dec.18,1877.

N.PETF.RS, FHOTo-L|rHOGRAPHiR, wASmNGTuN o u UNITED STATES PATENT OFFICE.

RROOxs RUsH, or FULTON COUNTY, GEORGIA.

IMPROVEMENT IN SASH-FASTENERS.

Specification forming part of Letters Patent No. 198,345, dated December 18, 1877; application filed November 1, 1877.

To all whom it may concern:

vBe it known that I, BROOKS BUsH, of Fulton county, in the State of Georgia, have inventedcertain new and useful Improvements in Sash-Fasteners, of which the following is a specification:

My invention consists in the novel construction and combination of a pair of looking levers or bolts, actuated by springs to lock the sash automatically, and so arranged that the sash is locked on both sides simultaneously and at any desired height, and unlocked by turning the knob 0r key in either direction, to right or left7 as hereinafter more fully described and claimed.

In the accompanying drawings, Figure l is an elevation of so much of a sash and frame as to show the application of the fastener.

the sash-frame being in section. Fig. 2 is an elevation of the locking mechanism with the bridge-piece removed. Fig. 3 is a transverse section on line x :n of Fig. 2, with the bridgepiece in position; and Fig. 4 is a perspective view of the back or supporting plate.

In the drawings similar letters of reference are employed to indicate corresponding parts wherever they may occur.

A is the sash-frame, and a is a metallic plate secured thereto, and provided with any number of perforations a', to receive the locking-bolts. B is the sash, the lower rail b of which is suitably recessed to receive the fastener, so that the back or supporting plate to the mechanism will lie flush with the surface of the sash.

The sash-fastener consists of the back or supporting plate C, formed of a central circular and enlarged portion, C1, and of the arms or extensions G2, the latter having perforated lugs or projections c formed at right angles to their outer extremities, these lugs c serving as supports for and guides to the locking-bolts. rIhe arms C2 extend clear across the sash, as shown in Fig. l. c1 c1 and c2 c2 are four upright lugs or plates formed on or secured to the circular enlarged portion G1 of the plate C, and serve to hold in position and guide the locking mechanism. D is a bridge-piece, pro vided on its under sidewith two an gle-pieces, d, so located that when the bridge is in position the projecting part d1 of the angle-pieces will lie on the inside of the upright lugs el, and d2 are screws to screw the bridge to the plate C, and hold the locking mechanisln securely in position.

The lugs c1 c1 are, by preference, removably connected with the plate C, and are each provided with pins c3 on their upper and lower faces, which enter corresponding holes in the back plate C and the bridge D.

I prefer this arrangement, as it facilitates the mounting of the plate or bow-springs E, which are aiiixed to the lugs or plates c1, as shown, each spring being provided at its outer extremities with forked ears e, between which one end of the toggle -levers F is pivoted, the other end of such levers being pivoted in slots g2, formed in the arms g of the bolts G. The bolts G consist of a central enlarged part, g, having square slots or apertures G1, and lie in a position one above the other, being shouldered at gx, to limit their backward throw when operated by the key H, and of the extensions or arms g, to which the togglelevers F are connected, and the locking bolts or rods gv2 formed on or connected with the outer end of extensions or arms gl. H is the operating-key upon the shaft h, on which is mounted the knob or handle h1 on the outside of the plate C. The shaft h on the inside of the plate carries an annular metallic washer, hl, upon which the locking-bolts G, rest and above this washer, and formed thereon or otherwise connected therewith, is located the key-piece h2, or actuating plate, both outer faces of which are slightly beveled to facilitate its action upon the inner lateral faces of the slots G1, within which the key piece or plate h2 is located.

h3 is a stud or pin formed on the upper face of the key-piece h2, on a line with the axis of the spindle h. This pin enters into a recess or perforation in the bridge D, which thus holds the key H in its proper position, and prevents any lateral deflection or movement of said key.

It will be obvious, from what has been said above, that by this arrangement of lockingbolts the locking of the sash is effected automatically upon the release of the knob h1, by

the bow-springs actuating the four togglelevers, and that the unlocking may be effected by turning said knob either to the right or left.

It will also be understood that I do not wish to limit myself to the manner of connecting the toggle-levers to the springs and lockingbolts, as this may be varied without departing from the spirit of this invention. For instance, the outer ends of the springs may be twisted, so as to stand at right angles to the main part of the spring, and the toggle-levers may be forked at both ends to embrace the rectangular part of the springs, as well as the locking-bolts, thus dispensing with the slots g2; or that end of the toggle-levers may be pivoted upon or on the under side of the bolts, as may be desired.

The sash-fastener being simple in construction, and from the description thereof, as detailed above, and by reference to the drawings hereto annexed, its operation will be readily understood, and needs, therefore, no further description.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is-

1. The plate C and the removable plates c, provided with pins or studs o3, in combination with the springs E, toggle-levers F, bolt-s G, and the bridge D, all constructed and operating substantially as described, for the purpose specified.

2. The supporting-plate C, having lugs or plates c2, and the removable plates c1, in combination with the springs E, toggle-levers F, bolts G, bridge D, and the fastening-screws d2, all constructed and operating substantially as described, for the purpose speciiied.

3. The combination of the plate C, constructed as described the springs E, togglelevers F, and bolts having slots Grl and shoulders g", and the bridge D, with the key H, all constructed, arranged, and operating substantially as described, for the purpose specified.

In witness that I claim the foregoing I have hereunto set my hand.

BROOKS BUSH.

Witnesses:

F. M. TRIMMIER, H. F. EvANs. 

